Python minidom module usage example [DOM write and parse XML]

# -*- coding:utf-8 -*-
#!python3
#Import minidomfrom  import minidom
# 1. Create a DOM tree objectdom=()
# 2. Create a root node.  Every time, you have to use a DOM object to create any node.root_node=('root')
# 3. Add root node with DOM object(root_node)
# Create element child nodes with DOM objectsbook_node=('book')
# Add element child nodes with parent node objectroot_node.appendChild(book_node)
# Set the properties of this nodebook_node.setAttribute('price','199')
name_node=('name')
root_node.appendChild(name_node)
# Also use DOM to create text nodes, treat text nodes (text content) as child nodesname_text=('Computer Programming Language 1 Edition')
# Add text nodes with the node object with text added (see the parent node of the text node)name_node.appendChild(name_text)
# Each node object (including the dom object itself) has a method to output XML content, such as: toxml()-- string, toptyxml()--beautify the tree format.try:
  with open('dom_write.xml','w',encoding='UTF-8') as fh:
    # ()The first parameter is the target file object, the second parameter is the indentation format of the root node, and the third parameter is the indentation format of other child nodes.    # The fourth parameter sets the line break format, and the fifth parameter sets the encoding of the xml content.    (fh,indent='',addindent='\t',newl='\n',encoding='UTF-8')
    print('Write to xml OK!')
except Exception as err:
  print('error message：{0}'.format(err))

<?xml version="1.0" encoding="UTF-8"?>
<root>
 <book price="199"/>
 <name>Computer programming language The1version</name>
</root>

# -*- coding:utf-8 -*-
#!python3
from  import minidom
with open('dom_write.xml','r',encoding='utf8') as fh:
  # parse() gets the DOM object  dom=(fh)
  # Get the root node  root=
  # Node name  print()
  # Node type: 'ELEMENT_NODE', element node; 'TEXT_NODE', text node; 'ATTRIBUTE_NODE', attribute node  print()
  # Get all child nodes under a node, which is a list  print()
  # Get the element node through the dom object or root element according to the label name, which is a list  book=('book')[0]
  # Get node properties  print(('price'))
  # Get the text content of an element node, first get the subtext node, and then get the text content through the "data" attribute  name=('name')[0]
  name_text_node=[0]
  print(name_text_node.data)
  # Get the parent node of a node  print()